Yaesu FT-450D Operation Manual page 7

F
RONT
BAND /BAND
These buttons select the operating band.
MAIN DIAL Knob
This knob adjusts the operating frequency in the SSB/CW/DATA modes.
You may change the knob's function to also adjust frequency in AM/FM
mode via the Menu Mode.
When the Clarifier is activated, this knob adjusts the receiver offset
frequency.
FAST Button
Pressing this button will increase or decrease the tuning rate of
the [ MAIN DIAL ] knob by a factor of ten and also increase or
decrease the tuning rate of the [ DSP/SEL ] knob by a factor of
two.
A=B Button
Press this button momentarily to transfer data from VFO-A fre-
quency (or a recalled memory channel) to VFO-B, overwriting
the previous contents in VFO-B. Use this key to set both VFO-A
and VFO-B to the same frequency and mode.
FT-450D O
PERATION
P
ANEL
Button
A/B Button
This button toggles the frequency
control between VFO-A and VFO-B.
LOCK Button
This button toggles the locking of the [ MAIN DIAL ] knob and some
switches, to prevent accidental frequency changes.
Advice: You may select the locking schemes via the Menu Mode.
Term Explanation: The Menu Mode permits you to make small changes
in the parameters of many of the functions of the FT-450D. You can cus-
tomize the operations to your personal preferences.
M
ANUAL
B
UTTONS AND
AF GAIN
This knob sets the receiver's audio
volume level. Typically, you will op-
erate with this control set between
the 9 o'clock and 10 o'clock posi-
tions.
SQL/RF GAIN Knob
In the factory default, this knob ad-
justs the gain of the receiver's RF
and IF stages. Using Menu Item
"SQL/RFG", this knob may be
changed to function as a Squelch
control, which may be used to si-
lence background noise when no sig-
nal is present.
K
NOBS
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